125184

Appears in sequences

• Number of subsets of {1, ..., n} with no four terms in arithmetic progression.at n=19A066369
• Number of 5-step left-handed knight's tours (moves only out two, left one) on an n X n board summed over all starting positions.at n=39A187175
• Number of (n+1) X 7 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly one clockwise edge increases.at n=10A207048
• Expansion of g.f. A(x) satisfying A(x) = 1 + 8*x * AGM(A(x)^2, A(x)^3).at n=4A369539
• a(n) = n^2*(2*n^2-23).at n=15A370109